/* 内容区 */
.main{
    width: 100%;
    margin-bottom: 50px;
}
.main-box{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 顶部按钮 */
.contant-btn{
    margin-top: 20px;
}
.contant-btn ul{
    display: flex;
    justify-content: center;
    border-bottom: 1px solid #f3f5f3;
}
.contant-btn ul li{
    margin: 0 6px;
    padding: 10px 0;
}
.contant-btn ul li button{
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    font-size: 16px;
    background-color: #EEEEEE;
}
.contant-btn ul li button:hover{
    transition: 0.3s;
    background-color: #8DAE66;
    color: #EEEEEE;
}


.main-content h1{
    text-align: center;
    margin: 50px 0 30px 0;
    font-size: 28px;
    font-weight: 500;
}
.main-content ul li img{
    width: 1200px;
    margin: 5px 0;
}